In London, the pregnant wife of an industrialist falls down the stairs, loses her sight and has no recollection of the events but suspects that a ment

　　1944年6月D日前德军占领下的法国诺曼底，盟军一支小分队奉命潜入敌占区，炸毁对盟军登陆威胁巨大的德军铁道巨炮